Opinionate is a word that means to form or express an opinion. There are many different synonyms that can be used in place of this word, such as assert, declare, state, or affirm. These words all relate to the act of expressing an opinion or belief, and can be used in a variety of different contexts. Other synonyms for opinionate may include judge, evaluate, or assess, which all convey the idea of forming an opinion based on some kind of analysis or evaluation. Ultimately, there are many different words that can be used in place of opinionate, depending on the tone, context, and specific meaning that is being conveyed.